Dust Monitor
Application
The dust monotor is used for measurement of particulate matter concentration in stack and before dedusting in the high temperature situation.
Technical principle
It consists of optical section, circuit and control section, calibrator and air curtain protection components. The laser beam (650 nm) comes across the detection area and produces scattered light after effect with dust particles. The back-scattered light crosses the lens converges into photosensitive detector. Analyzer circuit and control section converts light signal into signal output which is proportional to the dust concentration, and obtains dust particles emission concentration of pollution.
Features
1. In-situ zeroing and span calibration
2. Automatic gain control function and temperature compensation
3. Smart appearance, easy installation，convenient disassembly
4. Without background light interference.
Specifications
|
Measuring principle |
Laser backward scattering |
|
Measuring range |
0~500mg/m3，0~10g/m3 (optional) |
|
Span drift |
±2%F.S. |
|
Response time |
1s |
|
Laser |
650nm |
|
Indication error |
≤±20% |
|
Dimension |
158mm*158mm*234mm |
|
Weight |
4kg |
|
HMI |
Upper computer, telephone APP extensible |
|
Stack diameter |
＞0.7m |
|
Power |
24VDC±10%, <3W |
|
Ambient requirements |
Temperature: -40℃~+50℃ Relative humidity: 0~100%RH |
|
Medium conditions |
＜500℃ (higher temperature need to be customized) |
|
Analog output |
1×(4-20)mA, maximum load 800 |
|
Communication interface |
RS485, 2×relay output, bluetooth |
